doesnt concern you what version was purchased.

I guess the first question would be, why did you buy the Non-English version in the first place?

Second question, and this is the really important one based upon your first post, did you download a Russian copy of the game from the internet and you want files to install the game in English?

You must not use steam at all I take it. You can purchase or trade games with other users on Steam. There have been people who offer the trade or sale of game, without stating the version is in Russian. Its a common "scam" people do all the time. So don't always assume right away the person is lying or pirated a copy.